Alert archive / South Carolina / Tornado Warnings in 2013

Tornado Warning 13, NWS Charleston, SC

June 30, 2013Berkeley County, South Carolina

NWS Charleston, SC issued this tornado warning at Jun 30, 2013, 5:55 PM EDT for Berkeley County, South Carolina. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 30, 2013, 5:55 PM EDT (21:55 UTC)
Expired: Jun 30, 2013, 6:45 PM EDT
In force: 50 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

County Berkeley County, SC

The radar

The Wilmington radar (KLTX), 134 km from the middle of the area, began a volume at 21:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 30, 6:15 PM EDT	TSTM WND DMG	6 Se Jamestown, SC	TREE DOWN ON TURKEY POND ROAD. TIME ESTIMATED BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.9 hours before the alert went out and 55 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1458 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 527 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: -22 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

599 
WFUS52 KCHS 302155
TORCHS
SCC015-302245-
/O.NEW.KCHS.TO.W.0013.130630T2155Z-130630T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
555 PM EDT SUN JUN 30 2013

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* TORNADO WARNING FOR PORTIONS OF...
  BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 645 PM EDT

* AT 556 PM EDT...RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO 10 MILES SOUTHWEST OF JAMESTOWN...MOVING
  NORTHEAST AT 20 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  JAMESTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024...WHEN IT IS
SAFE TO DO SO.

&&

LAT...LON 3321 7945 3321 7948 3318 7950 3312 7981
      3322 7985 3332 7969 3330 7966 3330 7963
      3328 7961 3327 7956 3325 7953 3324 7950
      3325 7948 3324 7947 3324 7946 3322 7945
TIME...MOT...LOC 2156Z 246DEG 18KT 3317 7976

$$

2 follow-up statements

767 
WWUS52 KCHS 302206
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
606 PM EDT SUN JUN 30 2013

SCC015-302245-
/O.CON.KCHS.TO.W.0013.000000T0000Z-130630T2245Z/
BERKELEY SC-
606 PM EDT SUN JUN 30 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR PORTIONS
OF BERKELEY COUNTY...

AT 607 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR FAREWELL CORNER...
OR ABOUT 17 MILES NORTHWEST OF MCCLELLANVILLE...MOVING NORTHEAST AT
30 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...JAMESTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...STRONG
ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY BE OCCURRING
OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS
DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE
BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER
UNDER A HIGHWAY OVERPASS.

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3321 7945 3321 7948 3318 7950 3314 7974
      3324 7977 3332 7969 3330 7966 3329 7962
      3328 7961 3327 7956 3326 7954 3324 7950
      3325 7948 3324 7947 3324 7946
TIME...MOT...LOC 2207Z 242DEG 24KT 3322 7967

$$

263 
WWUS52 KCHS 302228
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
628 PM EDT SUN JUN 30 2013

SCC015-302237-
/O.CAN.KCHS.TO.W.0013.000000T0000Z-130630T2245Z/
BERKELEY SC-
628 PM EDT SUN JUN 30 2013

...THE TORNADO WARNING FOR PORTIONS OF BERKELEY COUNTY HAS BEEN
CANCELLED...

AT 627 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM WHICH PROMPTED 
THE WARNING HAD WEAKENED AND MOVED OUT OF BERKELEY COUNTY.
THE TORNADO WARNING HAS THEREFORE BEEN CANCELED.

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

LAT...LON 3321 7945 3321 7948 3318 7950 3314 7974
      3324 7977 3332 7969 3330 7966 3329 7962
      3328 7961 3327 7956 3326 7954 3324 7950
      3325 7948 3324 7947 3324 7946
TIME...MOT...LOC 2227Z 242DEG 24KT 3328 7953

$$

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 30, 11:31 AM EDT	Special Marine Warning	CHS		29 min
Jun 30, 12:02 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Colleton, Dorchester	88 min
Jun 30, 12:58 PM EDT	Flash Flood Warning	CHS	Berkeley, Charleston	2 hr
Jun 30, 1:19 PM EDT	Flash Flood Watch	CHS	Allendale, Berkeley, Colleton, Dorchester, Hampton	70 hr
Jun 30, 2:24 PM EDT	Flash Flood Warning	CHS	Berkeley, Charleston	2 hr
Jun 30, 2:33 PM EDT	Special Weather Statement	CHS	Hampton	27 min
Jun 30, 2:39 PM EDT	Special Marine Warning	CHS		2 hr
Jun 30, 2:50 PM EDT	Flash Flood Warning	CHS	Berkeley, Charleston	115 min
Jun 30, 3:36 PM EDT	Special Weather Statement	CHS	Colleton	24 min
Jun 30, 3:42 PM EDT	Special Weather Statement	CHS	Jasper	48 min
Jun 30, 4:15 PM EDT	Special Weather Statement	CHS	Colleton, Dorchester	30 min
Jun 30, 4:20 PM EDT	Special Weather Statement	CHS	Hampton	40 min
Jun 30, 4:27 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Colleton, Dorchester	63 min
Jun 30, 4:30 PM EDT	Tornado Warning	CHS	Berkeley, Dorchester	45 min
Jun 30, 4:51 PM EDT	Special Weather Statement	CHS	Berkeley	24 min
Jun 30, 5:10 PM EDT	Areal Flood Advisory	CHS	Beaufort, Berkeley, Charleston, Colleton, Dorchester	2 hr
Jun 30, 5:29 PM EDT	Flash Flood Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	3 hr
Jun 30, 5:35 PM EDT	Special Weather Statement	CHS	Berkeley	40 min
Jun 30, 6:02 PM EDT	Areal Flood Advisory	CHS	Allendale, Hampton	118 min

Nearby

Tornado Warnings in South Carolina, 2013 Every tornado warning in 2013 Tornadoes in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.